Jennifer Lopez might be one of the reasons the Grammys instated a new dress code in the first place (remember that plunging green Versace gown from 2000?!). But she's still looking sexy as ever for tonight's red carpet.

"They didn't say anything about leg!" J.Lo said about her slit-up-to-there Anthony Vaccarello ensemble. "I thought I was being such a good girl! A little shoulder, a little leg."

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